Stilton cheese

Stilton is an English cheese, produced in two varieties: Blue, which has Penicillium roqueforti added to generate a characteristic smell and taste, and White, which does not. Both have been granted the status of a protected designation of origin (PDO) by the European Commission, requiring that only such cheese produced in the three counties of Derbyshire, Leicestershire and Nottinghamshire may be called Stilton. The cheese takes its name from the village of Stilton, now in Cambridgeshire, where it has long been sold, but cannot be made because it is not in one of the three permitted counties.